Merge branch 'chelsio-annotate-structs-with-__counted_by'

Kees Cook says:

====================
chelsio: Annotate structs with __counted_by

This annotates several chelsio structures with the coming __counted_by
attribute for bounds checking of flexible arrays at run-time. For more details,
see commit dd06e72e ("Compiler Attributes: Add __counted_by macro").
====================

Link: https://lore.kernel.org/r/20230929181042.work.990-kees@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/chelsio/cxgb3/l2t.h

@@ -76,7 +76,7 @@ struct l2t_data {
 	atomic_t nfree;		/* number of free entries */
 	rwlock_t lock;
 	struct rcu_head rcu_head;	/* to handle rcu cleanup */
-	struct l2t_entry l2tab[];
+	struct l2t_entry l2tab[] __counted_by(nentries);
 };
 
 typedef void (*arp_failure_handler_func)(struct t3cdev * dev,

drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h

@@ -29,7 +29,7 @@ struct clip_tbl {
 	atomic_t nfree;
 	struct list_head ce_free_head;
 	void *cl_list;
-	struct list_head hash_list[];
+	struct list_head hash_list[] __counted_by(clipt_size);
 };
 
 enum {

drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32_parse.h

@@ -331,6 +331,6 @@ struct cxgb4_link {
 
 struct cxgb4_tc_u32_table {
 	unsigned int size;          /* number of entries in table */
-	struct cxgb4_link table[]; /* Jump table */
+	struct cxgb4_link table[] __counted_by(size); /* Jump table */
 };
 #endif /* __CXGB4_TC_U32_PARSE_H */

drivers/net/ethernet/chelsio/cxgb4/l2t.c

@@ -59,7 +59,7 @@ struct l2t_data {
 	rwlock_t lock;
 	atomic_t nfree;             /* number of free entries */
 	struct l2t_entry *rover;    /* starting point for next allocation */
-	struct l2t_entry l2tab[];  /* MUST BE LAST */
+	struct l2t_entry l2tab[] __counted_by(l2t_size);  /* MUST BE LAST */
 };
 
 static inline unsigned int vlan_prio(const struct l2t_entry *e)

drivers/net/ethernet/chelsio/cxgb4/sched.h

@@ -82,7 +82,7 @@ struct sched_class {
 
 struct sched_table {      /* per port scheduling table */
 	u8 sched_size;
-	struct sched_class tab[];
+	struct sched_class tab[] __counted_by(sched_size);
 };
 
 static inline bool can_sched(struct net_device *dev)

drivers/net/ethernet/chelsio/cxgb4/smt.h

@@ -66,7 +66,7 @@ struct smt_entry {
 struct smt_data {
 	unsigned int smt_size;
 	rwlock_t lock;
-	struct smt_entry smtab[];
+	struct smt_entry smtab[] __counted_by(smt_size);
 };
 
 struct smt_data *t4_init_smt(void);